KLB flat blocks W3

KLB flat blocks W3 are equivalent to thermally-modified hollow blocks. These thermal insulation blocks have several chambers with only narrow chamber widths and are also blocks for use where there are high thermal insulation requirements. KLB flat blocks W3 are very well suited for single-shell or multi-shell masonry with additional dampening. Simultaneously these blocks can also be used as basement exterior walls or load-bearing interior walls . Their processing is done as with KLB flat blocks SW1 with the same thin-bed mortar, which is supplied with all KLB flat blocks in sufficient quantity with all deliveries.

They have the building approval Z-17.1-766, which among others confirms the special thermal insulation properties of the blocks.